The main idea was using a SSD instead of HDD. Many of you geeks suggested, just swap the HDD with SSD, dammit.

Then the question came about whether the motherboard is SATA 2 or SATA 3. I wrote to the Crucial guyz and they were kind enough to respond today. They have a cool downloadable scanner tool which said my samsung laptop is indeed SATA 3 - 6 GB/s version.